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[1]杨涛,姚晓,张祖华,等.NaOH溶液浓度及反应时间对偏高岭土地质聚合反应的影响[J].南京工业大学学报(自然科学版),2013,35(04):21-25.[doi:10.3969/j.issn.1671-7627.2013.04.005]
 YANG Tao,YAO Xiao,ZHANG Zuhua,et al.Effects of NaOH solution concentration and reaction time on metakaolin geopolymerization[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2013,35(04):21-25.[doi:10.3969/j.issn.1671-7627.2013.04.005]
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NaOH溶液浓度及反应时间对偏高岭土地质聚合反应的影响()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
35
期数:
2013年04期
页码:
21-25
栏目:
出版日期:
2013-07-01

文章信息/Info

Title:
Effects of NaOH solution concentration and reaction time on metakaolin geopolymerization
文章编号:
1671-7627(2013)04-0021-05
作者:
杨涛1姚晓1张祖华2诸华军3
1. 南京工业大学 材料科学与工程学院,江苏 南京 210009; 2. 南昆士兰大学 工程与测绘学院,昆士兰 图文巴 4350; 3. 盐城工学院 材料工程学院,江苏 盐城 224051
Author(s):
YANG Tao1YAO Xiao1ZHANG Zuhua2ZHU Huajun3
1. College of Materials Science and Engineering,Nanjing University of Technology,Nanjing 210009,China; 2. Faculty of Engineering & Surveying,University of Southern Queensland,Toowoomba 4350,Australia; 3. School of Materials Engineering,Yancheng Institute of Technology,Yancheng 224051,China
关键词:
NaOH 偏高岭土 地质聚合物 沸石
Keywords:
NaOH metakaolin geopolymer zeolite
分类号:
TQ172
DOI:
10.3969/j.issn.1671-7627.2013.04.005
文献标志码:
A
摘要:
采用等温量热法(ICC)、X线衍射仪(XRD)及傅里叶变换红外光谱仪(FT-IR),分析偏高岭土经不同浓度NaOH溶液激发后反应不同时间生成的产物。结果表明:40 ℃下偏高岭土与10 和12 mol/L NaOH溶液反应,分别生成Na-A型沸石和硅铝酸钠材料(地质聚合物)。地质聚合反应初期涉及溶解、聚合及重排的过程,决定了产物的有序程度及性能。为保证地质聚合物的制备,应控制反应条件及激发剂浓度,避免产物向沸石转变。
Abstract:
The products of metakaolin(MK)activated by NaOH solutions with different concentration and reaction time were analyzed by means of isothermal conductive calorimetry(ICC),X-ray diffraction(XRD)and Fourier transform infrared(FT-IR).The results showed that when metakaolin was activated by 10 and 12 mol/L NaOH solutions at 40 ℃, the resulted products were Na-A zeolite and geopolymer,respectively.In the early reaction stage,the processes of dissolution,polymerization and reorganization decided the structure order of products and properties.To make sure that the amorphous geopolymeric gels would be formed in the alkali activation sytem,reaction conditions and activator concentration should be controlled to avoid the formation of zeolite.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2012-09-02
基金项目:国家高技术研究发展计划(863计划)(2006AA06Z225)
作者简介:杨涛(1987—),男,河北秦皇岛人,博士生,主要研究方向为碱激发胶凝材料; 姚晓(联系人),教授,E-mail:htm@njut.edu.cn..
更新日期/Last Update: 2013-07-07